T=int(input())

def dist(a,b):
    return (a[0]-b[0])**2+(a[1]-b[1])**2

def gcd(a,b):
    while b!=0:
        r=a%b
        a,b=b,r
    return abs(a)

def inc(a,b):
    diff_x=a[0]-b[0]
    diff_y=a[1]-b[1]
    g=gcd(diff_x,diff_y)
    diff_x//=g
    diff_y//=g
    if diff_x<0:
        diff_x*=-1
        diff_y*=-1
    return (diff_x,diff_y)

for _ in range(T):
    x1,y1,x2,y2,X1,Y1,X2,Y2=map(int,input().split())
    P1=[x1,y1]
    P2=[x2,y2]
    Q1=[X1,Y1]
    Q2=[X2,Y2]
    if P1==Q1 and P2==Q2:
        print("Yes")
        continue
    if dist(P1,P2)<=dist(Q1,Q2):
        print("No")
        continue
    if inc(P1,P2)==inc(Q1,Q2):print("Yes")
    else:print("No")